JP2014136916A - Vertical eaves type solar cell module unit - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vertical eaves type solar cell module unit that facilitates a fitting operation and a maintenance inspection operation.SOLUTION: One of right and left outdoor sides of a curtain wall on the side of a vertical frame 6 is provided with a rotary support part 30 for a unit 1 and the other is provided with a fixing reception part 31 for the unit 1. A vertical frame material 13 of the unit 1 is provided with an engagement part 32 which is engaged with the rotary support part 30 rotatably in a horizontal direction and a fixed part 33 which is fixed with a fixture 37 while abutting on the fixing reception part 31. The engagement part 32 is engaged with the rotary support part 30, the unit 1 is rotated horizontally around the rotary support part 30 to abut on the fixing reception part 31, and the fixed part 33 is fixed to the fixing reception part 31 with the fixture 37.

Description

  The present invention relates to a solar cell module unit installed in a building, and particularly relates to a solar cell module unit suitable for mounting as a vertical gutter on an outer wall of a building.

  As an example of installation of a solar cell module in a building, for example, as described in Patent Document 1, a solar cell module is incorporated instead of a curtain wall glass panel, or a solar cell module is provided on a wall. . In addition to these solar cell module installation examples, the solar cell module is mounted on the outer wall of the building, and the solar cell module is assembled into a frame to form a solar cell module unit, which is vertically mounted on the curtain wall. In the case of this vertical type unit, the mounting structure shown in the cross-sectional view of FIG. 13 was employed.

  In FIG. 13, 50 is a vertical frame of the curtain wall, and 51 is a solar cell module unit attached to the vertical frame 50 as a vertical gutter. The unit 51 is a unit in which the front and back surfaces of a resin layer 52 including a power generation element (not shown) are integrated by being sandwiched by a glass panel 53 and surrounded by a frame 54. Reference numeral 54a denotes a vertical frame member that constitutes a part of the frame 54. The vertical frame member 54a has mounting ridges 55 and 56 that protrude from the left and right sides toward the curtain wall. On the other hand, a bracket 59 is fixed to the vertical frame 50 of the curtain wall with bolts 57 and nuts 58. Then, the fitting grooves 60a, 61a of the left and right ridges 60, 61 of the bracket 59 are fitted and overlapped with the fitting grooves 55a, 56a of the ridges 55, 56 of the vertical frame member 54a. The unit 51 is attached to the vertical frame 50 of the curtain wall by connecting the protrusions 55 and 56 and the protrusions 60 and 61 with 63.

JP 2000-297497 A

  However, according to the conventional structure shown in FIG. 13, for example, it is possible to connect the protrusions 55, 56 and 60, 61 to each other and to connect them with screws 62, 63 from both sides of the unit 51 using an unstable scaffold using a gondola. Need to do. In addition, the solar cell module unit 51 is obliged to be inspected once every four years. However, when removing the unit 51, it is necessary to remove the screws 62 and 63 from both sides of the unit 51. There is a problem that the work is not easy.

  In view of the above problems, an object of the present invention is to provide a downright solar cell module unit that facilitates installation work and maintenance inspection work.

The vertical solar cell module unit according to claim 1 is provided with a rotation support portion of the solar cell module unit on either the left or right side of the outdoor side of the vertical frame of the curtain wall, and the receiving portion for fixing the solar cell module unit on the other side. Provided,
The vertical frame member of the solar cell module unit is provided with an engaging portion that engages with the rotation support portion so as to be horizontally rotatable, and a fixing portion that comes into contact with the fixing receiving portion and is fixed by a fixture.
The engaging portion of the vertical frame member of the solar cell module unit is engaged with the rotating support portion on the vertical frame side of the curtain wall, and the solar cell module unit is centered on the rotating support portion. The solar cell module unit is attached to the vertical frame by horizontally rotating so that the fixing portion is brought into contact with the fixing receiving portion, and the fixing portion is fixed to the fixing receiving portion with a fixing tool. It is characterized by that.

The downspread solar cell module unit according to claim 2 is the downspout solar cell module unit according to claim 1,
A load receiver for a solar cell module unit is provided on the vertical frame side of the curtain wall, and the solar cell module unit is supported by the load receiver so as to be horizontally rotatable.

The vertical solar cell module unit according to claim 3 is the vertical solar cell module unit according to claim 1 or 2,
The engaging portion of the vertical frame member of the solar cell module unit is formed in a shape in which a horizontal section forms an arc shape,
The vertical frame side rotation support portion has a shaft portion that fits the arcuate surface of the inner periphery of the engagement portion, and a concave arcuate surface that fits the arcuate surface of the outer periphery of the engagement portion. It is characterized by comprising a detachment prevention member attached to the frame side by a fixture.

The vertical saddle type solar cell module unit according to claim 4 is the vertical vertical solar cell module unit according to any one of claims 1 to 3,
The rotation support portion and the fixing receiving portion are provided on a bracket attached to a vertical frame of the curtain wall by bolts and nuts.

  According to the first aspect of the present invention, the engaging portion of the vertical frame member of the solar cell module unit is engaged with the rotation support portion on the vertical frame side of the curtain wall, and the unit is horizontally rotated so that the fixing portion of the unit is Since the unit is attached to the vertical frame by abutting on the fixing receiving part on the vertical frame side and fixed by a fixing tool, the unit can be mounted by work on one side of the unit. Become. Also, since the unit can be removed from one side, maintenance and inspection work is facilitated.

  According to the invention of claim 2, since the load receiver is provided on the vertical frame side of the curtain wall and the load of this load receiver unit is received, it is necessary to support the load of the unit when the unit is attached or detached. Therefore, the unit can be easily attached and removed.

  According to the invention of claim 3, the rotation support portion on the vertical frame side is fitted to the shaft portion that fits the inner peripheral surface of the arc-shaped portion of the engaging portion of the unit and the arc-shaped surface of the outer periphery of the engaging portion. Since it has a concave arcuate surface to be joined and is constituted by a locking member that is attached to the vertical frame side by a fixture, the unit is firmly engaged without rattling and the engaging portion is engaged without being disengaged, The rotation range of the unit at the time of unit attachment / removal is expanded, and attachment / removal is further facilitated.

  In addition, it is possible to attach the unit by attaching it from the side instead of hanging it from the top by attaching the anti-separation member later, and when removing the unit for maintenance inspection, first remove the anti-separation member, then By removing the unit, the unit can be easily removed in the lateral direction.

  According to the invention of claim 4, since the bracket for unit attachment can be retrofitted to the vertical frame of the curtain wall, the unit having the above structure can be attached to the existing vertical frame.

It is a perspective view of the building which shows one Embodiment of the solar cell module unit of this invention. It is the elements on larger scale of FIG. It is a longitudinal cross-sectional view which shows the state which attached the solar cell module unit of this Embodiment to the vertical frame of a curtain wall as a vertical wall of a building about the upper part of the upper unit of the unit which makes 2 sheets 1 set. It is a longitudinal cross-sectional view which shows the state which attached the solar cell module unit of this Embodiment to the vertical frame of a curtain wall as a vertical wall of a building about the lower part of the lower unit among the unit which makes 2 sheets 1 set. It is a cross-sectional view which shows the state which attached the solar cell module unit of this Embodiment to the curtain wall as a vertical wall of a building. It is a front view which shows the solar cell module unit of this Embodiment. It is a longitudinal cross-sectional view which shows the solar cell module unit of this Embodiment. It is a cross-sectional view which shows the attachment structure to the curtain wall of the unit of this Embodiment. It is the elements on larger scale of FIG. It is a top view which shows the horizontal rotation range of the solar cell module unit of this Embodiment. (A) is a disassembled front view which shows the structural member which implement | achieves the load receiving structure of the unit of this Embodiment, (B) is a longitudinal cross-sectional view which shows an assembly structure. It is a front view which shows the wiring structure of the unit of this Embodiment. It is a cross-sectional view which shows the attachment structure to the curtain wall of the conventional vertical wall type solar cell module unit.

  FIG. 1 is a perspective view of a building showing an embodiment of a solar cell module unit 1 of the present invention, and FIG. 2 is a partially enlarged view thereof. As shown in FIG. 1 and FIG. 2, the solar cell module unit 1 also serves as a vertical fence and is attached to a curtain wall 2 constituting the outer wall of the building. As shown in FIG. 1, on each floor, two units 1 are mounted vertically for each curtain wall 2, and the cables of the units 1 arranged vertically adjacent to each other are connected in series, as shown in FIG. As described above, the units arranged side by side in a set of two pieces are connected by a cable 3a, and the return cable 3b is connected to units on each floor through a cable 3c that is vertically wired to one side of a building or the like. In addition, a common cable 3d is also wired to a plurality of floors as one group, and as shown in FIG. 1, the DC output of the solar cell module as a whole is concentrated in the power conditioner 4 installed in the building, and the DC is exchanged here. Processing such as conversion to.

  The curtain wall 2 includes a unit type curtain wall in which the curtain wall is assembled as a unit in the factory in advance and attached to the housing as an outer wall at the construction site, and a knockdown type that is assembled as a curtain wall at the construction site. In this example, a knockdown type is shown. The curtain wall 2 has a vertical frame 6 attached to a frame such as a reinforced concrete floor 5 via a bracket (not shown).

  As shown in FIG. 2, the frame body of the curtain wall 2 includes a horizontal frame 7 corresponding to each floor between adjacent vertical frames 6 and 6 and a horizontal frame 8 between the upper and lower horizontal frames 7 and 7. As shown in the longitudinal sectional views of FIGS. 3 and 4 and the transverse sectional view of FIG. 5, the frame surrounded by the left and right vertical frames 6, 6, the intermediate horizontal frame 8, and the horizontal frame 7 below it. A pair of glass plates 9 are incorporated into the light transmission wall to form a light transmission wall. A glass panel 10 is enclosed in a frame surrounded by left and right vertical frames 6 and 6, an intermediate horizontal frame 8, and a horizontal frame 7 above the frame. The light-shielding wall is configured by incorporating the fireproof board 11. The vertical frame 6 and the horizontal frames 7 and 8 are both made of extruded metal.

  6 is a front view showing the unit 1, and FIG. 7 is a longitudinal sectional view thereof. As shown in FIGS. 6 and 7, the unit 1 is configured by surrounding the solar cell module 12 with a unit frame 18. The unit frame 18 is formed by connecting one vertical frame member 13 on the cable drawing side, the vertical frame member 14 on the opposite side, the upper frame member 15 and the lower frame member 16 with a tapping screw 17. It is. These frame members 13 to 16 are all formed of extruded shapes.

  As shown in FIG. 7, the solar cell module 12 is integrated by sandwiching a resin layer 20 including a plurality of power generating elements 19 arranged vertically and horizontally between front and back glass panels 21A and 21B. Then, as shown in FIG. 6, the terminal boxes 22A and 22B and the diode 25 are fixed to the side surface on which the vertical frame member 13 is mounted, and connected to the terminal boxes 22A and 22B via cables 23A and 23B, respectively. The connectors 24A and 24B are provided. The diode 25 is provided to guide the generated voltage of only the element that generates power by configuring a bypass circuit for the elements that do not generate power among the plurality of power generation elements 19 connected in series with each other. .

  As shown in the cross-sectional view of FIG. 8, the cables 23 </ b> A and 23 </ b> B connected to the terminal boxes 22 </ b> A and 22 </ b> B of the solar cell module 12 are pulled out together with the connectors 24 </ b> A and 24 </ b> B from the opening 13 a provided in the vertical frame member 13.

  As shown in FIG. 8, a bracket 27 for attaching the unit 1 is attached to the outdoor side end of the vertical frame 6 of the curtain wall 2 by bolts 28 and nuts 29. The bracket 27 has a substantially U-shaped horizontal cross-section, and the bracket 27 is provided with a rotation support portion 30 on one of the left and right sides of the bracket 27 (left side as viewed from the outdoor side in the present embodiment). Is provided with a receiving portion 31 for fixing. On the other hand, the vertical frame member 13 of the unit 1 is provided with an engaging portion 32 that engages with the rotation support portion 30 so as to be horizontally rotatable, and a fixing portion 33 that is fixed to the fixing receiving portion 31.

  The rotation support portion 30 provided on the bracket 27 includes a shaft portion 34 a formed at the tip of an L-shaped vertical plate portion 34 that protrudes outward from the outdoor side, and a detachment prevention member 35. As shown in FIG. 9, the engaging portion 32 has an inner arcuate surface 32a fitted to an outer arcuate surface 34b of the shaft portion 34a. Further, the locking member 35 has a concave arcuate surface 35 b that fits into the arcuate surface 32 b on the outer periphery of the engaging portion 32.

  Further, the L-shaped vertical plate portion 34 of the bracket 27 has an inclined vertical plate portion 34c for attaching the detachment preventing member 35, and the vertical plate portion 34c has a screw hole 34d. The anti-slip member 35 is attached to the vertical plate part 34c by screwing and screwing into a screw hole 34d provided in the vertical plate part 34c through a screw 36 as a fixture in a through hole 35a provided in the anti-skid member 35. It is done. The detachment preventing member 35 is configured to fit the engaging portion 32 of the unit 1 to the shaft portion 34 a, and then fit between the engaging portion 32 and the vertical plate portion 34 c to be fixed by the screw 36.

  As shown in FIG. 8, the fixing receiving portion 31 provided on the bracket 27 includes a step portion 31 a that abuts the tip of the fixing portion 33 provided on the vertical frame member 13 of the unit 1, and a screw 37 that is a fixing tool. Has a screw hole 31b.

  As shown by a two-dot chain line in FIG. 10, the unit 1 has the engaging portion 32 engaged with the shaft portion 34a in a posture inclined with respect to the curtain wall 2 in plan view, and this state is shown in FIG. In this manner, the detachment prevention member 35 is attached between the engagement portion 32 and the vertical plate portion 34c with a screw 36. Thereafter, the front end of the fixing portion 33 provided on the vertical frame member 13 is rotated until it comes into contact with the step portion 31a of the fixing receiving portion 31 of the bracket 27, and the state shown by the solid line in FIG. In the state indicated by the solid line, the fixing portion 33 provided on the vertical frame member 13 is brought into contact with the fixing receiving portion 31. In this state, as shown in FIG. 8, the screw unit 37 is screwed into the through hole 33 a provided in the fixing portion 33 provided in the vertical frame member 13 and screwed into the screw hole 31 b of the fixing receiving portion 31 to fasten the unit. 1 is attached to the vertical frame 6.

  Next, the load receiving mechanism of the unit 1 will be described. As shown in FIG. 11A, a notch 32c is provided in the middle of the engaging portion 32 from the side. On the other hand, as shown in FIG. 11B, a block-shaped load receiver 38 that loosely fits into the notch 32c and abuts the upper side 32d of the notch 32c to the upper surface is fixed to the bracket 27 as shown in FIG. Install by. An attachment site of the load receiver 38 is shown by a two-dot chain line in FIG. In FIG. 11A, a notch 34e is provided for fitting the load receiver 38 to bear the load of the unit 1 on the vertical plate portion 34c. Further, the stopper member 35 is provided with a notch 35c for avoiding the load receiver 38. Such a load receiver 38 is provided for each unit 1 in a set of two sheets.

  The load receiver 38 is attached to the bracket 27 before the bracket 27 is attached to the vertical frame 6. The unit 1 is attached to the load receiver 38 by fitting the notch 32 c of the engaging portion 32 of the vertical frame member 13. Then, the engaging portion 32 is fitted into the shaft portion 34a, and then the notch 35c of the come-off preventing member 35 is fitted, and the come-off preventing member 35 is fixed to the vertical plate portion 34c by the screw 36. Thereafter, the unit 1 is horizontally rotated as described above, and the fixing portion 33 is fixed to the fixing receiving portion 31 with the screw 37.

  FIG. 2 is a front view showing a wiring structure of the unit 1 provided for each curtain wall 2 in a set of two sheets. In the unit 1 provided adjacent to the upper and lower sides, the lower connector 24B of the upper unit 1 is connected to the upper connector 24A of the lower unit 1, and the upper and lower units 1 are connected. A connector 24C provided at the end of the cable 3a connected to the adjacent unit 1 is connected to the lower connector 24B of the lower unit 1, and the cable 3a is drawn upward through the bracket 27. Further, through the duct 40 provided outside the horizontal frame 8 provided between the vertical frames 6 and 6 (see FIG. 3), it is connected to the upper connector 24A of the upper unit 1 adjacent side by side.

  As described above, in the unit 1 of the present embodiment, the engagement portion 32 of the vertical frame member 13 is engaged with the rotation support portion 30 provided on the vertical frame 6 side, and the unit 1 is horizontally rotated and fixed. Since the unit 1 is attached to the vertical frame 6 by bringing the portion 33 into contact with the fixing receiving portion 31 on the vertical frame 6 side and fixing with the screw 37, the unit 1 can be attached from one side thereof. Easy to install. Further, since the unit 1 can be removed from one side, maintenance and inspection work is facilitated.

  Further, in the present embodiment, the load of the unit 1 is received by the load receiver 38 provided on the vertical frame 6 side of the curtain wall 2, so that the load of the unit 1 is supported when the unit 1 is attached and detached. This makes it easier to attach and remove the unit 1.

  In the present invention, it is also possible to configure a support mechanism capable of rotating the unit 1 by the shaft portion 34a and the arcuate engagement portion 32 that is rotatably fitted to the shaft portion 34a. In the embodiment, the rotation support portion 30 on the vertical frame 6 side is attached to the shaft portion 34 a that fits the inner peripheral surface 32 a of the arc-shaped portion of the engaging portion 32 and the arc-shaped surface 32 b of the outer periphery of the engaging portion 32. Since it has the concave arcuate surface 35b to be fitted and the anti-slip member 35 attached to the vertical frame 6 by the fixture 36, the unit 1 is firmly and without looseness, and the engaging portion 32 is detached. Engaged without. Further, the rotation range of the unit 1 at the time of unit attachment / detachment, that is, the angle θ shown in FIG. 10 is enlarged, and attachment / detachment is further facilitated.

  Further, by attaching the locking member 35 later, the unit 1 can be mounted by being fitted from the side instead of being suspended from above, and the locking member 35 is also first removed when the unit 1 is removed for maintenance and inspection. Is removed, and then the unit 1 is removed, whereby the unit 1 can be easily removed in the lateral direction.

  In the present invention, the vertical frame 6 may be provided with the rotation support portion 30 and the fixing receiving portion 31, but the bracket 27 attached to the vertical frame 6 with the bolt 28 and the nut 29 as in the present embodiment. Since the rotation support portion 30 and the fixing receiving portion 31 are provided, the bracket 27 for attaching the unit can be retrofitted to the vertical frame 6 of the curtain wall 2, and the above structure is also applied to the existing vertical frame 6. The unit 1 can be attached.

  Although the present invention has been described above with reference to the embodiment, when the present invention is carried out, a plurality of types can be used so that the inclination angle of the unit 1 with respect to the curtain wall 2 (angle in the direction of angle θ in FIG. 10) can be changed. A bracket 27 selected from those may be attached. The present invention can also be applied when the curtain wall is a unit type. Moreover, when implementing this invention, a various change and addition are possible about a structural member and its combination in the range which does not deviate from the summary of this invention.

1: solar cell module unit, 2: curtain wall, 3a-3d: cable, 4: power conditioner, 6: vertical frame, 7, 8: horizontal frame, 9: pear glass, 10: glass panel, 11: fireproof board, 12: Solar cell module, 13, 14: Vertical frame material, 15: Upper frame material, 16: Lower frame material, 17: Tapping screw, 18: Unit frame, 19: Power generation element, 20: Resin layer, 21A, 21B: Glass panel, 22A, 22B: terminal box, 23A, 23B, 23C: cable, 24A, 24B, 24C: connector, 25: diode, 27: bracket, 28: bolt, 29: nut, 30: rotation support section, 31 : Receiving part for fixing, 31a: stepped part, 31b: screw hole, 32: engaging part, 32a: inner arcuate surface, 32b: outer arcuate surface, 32c: notch, 33: fixed , 33a: through-hole, 34: L-shaped vertical plate portion, 34a: shaft portion, 34c: vertical plate portion, 34d: screw hole, 34e: notch, 35: slip-off preventing member, 35a: through-hole, 35b: concave shape Arc-shaped surface, 35c: notch, 36: screw (fixing tool), 37: screw (fixing tool), 38: load receiver, 39: screw (fixing tool)

Claims (4)

A rotation support part of the solar cell module unit is provided on either the left or right side of the outdoor side of the vertical frame of the curtain wall, and a receiving part for fixing the solar cell module unit is provided on the other side,
The vertical frame member of the solar cell module unit is provided with an engaging portion that engages with the rotation support portion so as to be horizontally rotatable, and a fixing portion that comes into contact with the fixing receiving portion and is fixed by a fixture.
The engaging portion of the vertical frame member of the solar cell module unit is engaged with the rotating support portion on the vertical frame side of the curtain wall, and the solar cell module unit is centered on the rotating support portion. The solar cell module unit is attached to the vertical frame by horizontally rotating so that the fixing portion is brought into contact with the fixing receiving portion, and the fixing portion is fixed to the fixing receiving portion with a fixing tool. A vertical solar cell module unit characterized by that. In the vertical solar cell module unit according to claim 1,
A vertical solar cell module unit, wherein a load receiver of a solar cell module unit is provided on the vertical frame side of the curtain wall, and the solar cell module unit is supported on the load receiver so as to be horizontally rotatable. In the vertical solar cell module unit according to claim 1 or 2,
The engaging portion of the vertical frame member of the solar cell module unit is formed in a shape in which a horizontal section forms an arc shape,
The vertical frame side rotation support portion has a shaft portion that fits the arcuate surface of the inner periphery of the engagement portion, and a concave arcuate surface that fits the arcuate surface of the outer periphery of the engagement portion. A vertical solar cell module unit comprising a detachment prevention member attached to the frame side by a fixture. In the vertical solar cell module unit according to any one of claims 1 to 3,
A vertical solar cell module unit, wherein the pivot support portion and the fixing receiving portion are provided on a bracket attached to a vertical frame of the curtain wall by bolts and nuts.

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